NEStalgia is a Free-to-Play 8-bit MMO (TRAILER)
Like other MMOs, you get a fully customizable (8-bit) character with a whole bunch of classes to choose from, from rangers to soldiers to warlocks and other casters. You can team up, wail on monsters by clicking menu options and never actually engaging them with fighting animations, and explore a top-down world map as you take on quests.
Did I mention it was totally free? You can download the client and start playing within about 10 minutes. Click through right here to get the process started. Check out the trailer embedded below.
Via Died Again.